Wiki creation returns 500 when project's default branch is not master.

[jkiv]

• Gitea version: 1.15.0+rc2
• Git version: 2.25.1
• Ubuntu Server 20.04LTS (Linux 5.8.0-1039-azure 42~20.04.1-Ubuntu SMP x86_64)
• Running Gitea in Docker. Followed docker-compose instructions.
• Using PostgreSQL version 13.3 (Debian 13.3-1.pgdg100+1)

Symptoms

I've been playing around with Gitea on a local VM.

I created an empty repository called "Test" and set the default branch to "main".

I immediately tried to create a WIki and add a page. I used the default body "Welcome to the Wiki." However, the page title was not populated by default. I named the page "Home" and clicked "Save page".

This produced a page that read "500" and the attached error messages.

I was not able to reproduce on try.gitea.io.

Logs

The resulting log output:

2021/08/04 10:20:44 Started POST /jkiv/Test/wiki/_new for 172.19.0.1:46174
2021/08/04 10:20:44 ...ervices/wiki/wiki.go:93:prepareWikiFileName() [E] exit status 128 - fatal: Not a valid object name master
	
2021/08/04 10:20:44 ...ers/web/repo/wiki.go:616:NewWikiPost() [E] AddWikiPage: exit status 128 - fatal: Not a valid object name master
	
2021/08/04 10:20:44 Completed POST /jkiv/Test/wiki/_new 500 Internal Server Error in 28.04429ms

docker-compose.yml:

The docker-compose.yml:

version: "3"

networks:
  gitea:
    external: false

services:
  server:
    image: gitea/gitea:latest
    container_name: gitea
    environment:
      - USER_UID=13000
      - USER_GID=13000
      - GITEA__database__DB_TYPE=postgres
      - GITEA__database__HOST=db:5432
      - GITEA__database__NAME=gitea
      - GITEA__database__USER=gitea
      - GITEA__database__PASSWD=gitea
    restart: always
    networks:
      - gitea
    volumes:
      - /opt/gitea/data:/data
      - /etc/timezone:/etc/timezone:ro
      - /etc/localtime:/etc/localtime:ro
    ports:
      - "3000:3000"
      - "2222:22"
    depends_on:
      - db

  db:
    image: postgres:13
    restart: always
    environment:
      - POSTGRES_USER=gitea
      - POSTGRES_PASSWORD=gitea
      - POSTGRES_DB=gitea
    networks:
      - gitea
    volumes:
      - /opt/gitea/postgres:/var/lib/postgresql/data

app.ini

The app.ini with secrets intentionally removed

APP_NAME = GITEA
RUN_MODE = prod
RUN_USER = git

[repository]
ROOT = /data/git/repositories

[repository.local]
LOCAL_COPY_PATH = /data/gitea/tmp/local-repo

[repository.upload]
TEMP_PATH = /data/gitea/uploads

[server]
APP_DATA_PATH    = /data/gitea
DOMAIN           = localhost
SSH_DOMAIN       = localhost
HTTP_PORT        = 3000
ROOT_URL         = http://gitea/
DISABLE_SSH      = false
SSH_PORT         = 22
SSH_LISTEN_PORT  = 22
LFS_START_SERVER = true
LFS_CONTENT_PATH = /data/git/lfs
LFS_JWT_SECRET   = <removed>
OFFLINE_MODE     = true

[database]
PATH     = /data/gitea/gitea.db
DB_TYPE  = postgres
HOST     = db:5432
NAME     = gitea
USER     = gitea
PASSWD   = gitea
LOG_SQL  = false
SCHEMA   = 
SSL_MODE = disable
CHARSET  = utf8

[indexer]
ISSUE_INDEXER_PATH = /data/gitea/indexers/issues.bleve

[session]
PROVIDER_CONFIG = /data/gitea/sessions
PROVIDER        = file

[picture]
AVATAR_UPLOAD_PATH            = /data/gitea/avatars
REPOSITORY_AVATAR_UPLOAD_PATH = /data/gitea/repo-avatars
DISABLE_GRAVATAR              = true
ENABLE_FEDERATED_AVATAR       = false

[attachment]
PATH = /data/gitea/attachments

[log]
MODE      = console
LEVEL     = info
ROUTER    = console
ROOT_PATH = /data/gitea/log

[security]
INSTALL_LOCK                  = true
SECRET_KEY                    = <removed>
REVERSE_PROXY_LIMIT           = 1
REVERSE_PROXY_TRUSTED_PROXIES = *
INTERNAL_TOKEN                = <removed>
PASSWORD_HASH_ALGO            = pbkdf2

[service]
DISABLE_REGISTRATION              = false
REQUIRE_SIGNIN_VIEW               = false
REGISTER_EMAIL_CONFIRM            = false
ENABLE_NOTIFY_MAIL                = false
ALLOW_ONLY_EXTERNAL_REGISTRATION  = true
ENABLE_CAPTCHA                    = false
DEFAULT_KEEP_EMAIL_PRIVATE        = false
DEFAULT_ALLOW_CREATE_ORGANIZATION = false
DEFAULT_ENABLE_TIMETRACKING       = true
NO_REPLY_ADDRESS                  = hidden.gitea.hyperv.local

[mailer]
ENABLED = false

[openid]
ENABLE_OPENID_SIGNIN = false
ENABLE_OPENID_SIGNUP = false

Screenshots

The repo:

Creating the wiki:

No default title (unlike try.gitea.io):

Before submitting:

After submitting:

[zeripath]

Fixed by #16586 and its backport #16598 which will be in rc3.